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US 12,409,877 B1Granted
Folding stroller
AssigneeZhongshan Kangdi Baby Products Co., Ltd.
InventorJunjie Kuang
Life of this patent
Estimating the term…
Abstract
A folding stroller includes a framework and wheels mounted at a bottom of the framework. The framework has a folded state and an unfolded state. The frame includes front and rear bracket assemblies, a lower bracket assembly, and a support frame assembly. Front and rear connecting rod units are respectively arranged at lower ends of the front and rear bracket assemblies. The lower bracket assembly includes first and second lower bracket units. First ends of the first and second lower bracket units are respectively rotatably connected to a lower end of the front bracket assembly and a lower end of the rear bracket assembly. Second ends of the first and second lower bracket units are rotatably connected. The support frame assembly includes first and second support frame units and first and second rotating rod units.
Claims18
A folding stroller, comprising a framework and wheels mounted at a bottom of the framework, wherein the framework has a folded state and an unfolded state;
- the framework comprises:
- a front bracket assembly;
- a rear bracket assembly, wherein the rear bracket assembly is arranged in a manner of being opposite to the front bracket assembly;
- a lower bracket assembly, wherein the lower bracket assembly comprises a first lower bracket unit and a second lower bracket unit;
- a first end of the first lower bracket unit is rotationally connected to a lower end of the front bracket assembly;
- a first end of the second lower bracket unit is rotationally connected to a lower end of the rear bracket assembly;
- a second end of the first lower bracket unit is rotationally connected to a second end of the second lower bracket unit;
- and
- a support frame assembly, wherein the support frame assembly is connected to the lower bracket assembly;
- the support frame assembly comprises several support rod and frame units;
- the support rod and frame units are rotationally connected to at least one adjacent support rod and frame unit;
- when the framework is in the unfolded state, a downwards sunken foot accommodating space is formed among at least some of the support rod and frame units, the first lower bracket unit, and the second lower bracket unit;
- wherein the first lower bracket unit comprises a first limiting member arranged at the second end of the second first lower bracket unit;
- the second end of the second lower bracket unit is rotatably connected to the first limiting member;
- and when the framework is in the unfolded state, the first limiting member resists against the second lower bracket unit;
- wherein a first locking member is arranged in the second end of the second lower bracket unit;
- a locking end of the first locking member is threaded out of a side wall of the second end of the second lower bracket unit;
- the first limiting member is provided with a first locking hole;
- and when the framework is in the unfolded state, the locking end of the first locking member is inserted into the first locking hole.
16 more elements
A folding stroller, comprising a framework and wheels mounted at a bottom of the framework, wherein the framework has a folded state and an unfolded state;
- the framework comprises:
- a front bracket assembly;
- a rear bracket assembly, wherein the rear bracket assembly is arranged in a manner of being opposite to the front bracket assembly;
- a lower bracket assembly, wherein the lower bracket assembly comprises a first lower bracket unit and a second lower bracket unit;
- a first end of the first lower bracket unit is rotationally connected to a lower end of the front bracket assembly;
- a first end of the second lower bracket unit is rotationally connected to a lower end of the rear bracket assembly;
- a second end of the first lower bracket unit is rotationally connected to a second end of the second lower bracket unit;
- and
- a support frame assembly, wherein the support frame assembly is connected to the lower bracket assembly;
- the support frame assembly comprises several support rod and frame units;
- the support rod and frame units are rotationally connected to at least one adjacent support rod and frame unit;
- when the framework is in the unfolded state, a downwards sunken foot accommodating space is formed among at least some of the support rod and frame units, the first lower bracket unit, and the second lower bracket unit;
- wherein the wheels comprise movable casters and fixed casters;
- the movable casters are connected to a bottom of the front bracket assembly;
- and the fixed casters are connected to a bottom of the rear bracket assembly;
- wherein the framework further comprises a second locking assembly;
- the second locking assembly is moved between a locked position and an unlocked position;
- several second locking holes are provided on inner sides of the fixed casters along edges of rotating shafts;
- when the second locking assembly is moved to the locked position, a locking rod of the second locking assembly is inserted into the second locking holes;
- and when the second locking assembly is moved to the unlocked position, the locking rod of the second locking assembly is detached from the second locking holes;
- wherein the second locking assembly further comprises a driving pedal and a driving rod;
- the driving pedal is connected to the driving rod;
- a driving slope is arranged at an end portion of the driving rod;
- the driving pedal and the driving rod rotate around a rotating shaft of the driving rod under the action of an external force;
- and a first end of the locking rod resists against the driving slope and slides along a surface of the driving slope to allow the locking rod to extend and retract and to be inserted or detached from the second locking holes.
22 more elements
A folding stroller, comprising a framework and wheels mounted at a bottom of the framework, wherein the framework has a folded state and an unfolded state;
- the framework comprises:
- a front bracket assembly;
- a rear bracket assembly, wherein the rear bracket assembly is arranged in a manner of being opposite to the front bracket assembly;
- a lower bracket assembly, wherein the lower bracket assembly comprises a first lower bracket unit and a second lower bracket unit;
- a first end of the first lower bracket unit is rotationally connected to a lower end of the front bracket assembly;
- a first end of the second lower bracket unit is rotationally connected to a lower end of the rear bracket assembly;
- a second end of the first lower bracket unit is rotationally connected to a second end of the second lower bracket unit;
- a support frame assembly, wherein the support frame assembly is connected to the lower bracket assembly;
- the support frame assembly comprises several support rod and frame units;
- the support rod and frame units are rotationally connected to at least one adjacent support rod and frame unit;
- when the framework is in the unfolded state, a downwards sunken foot accommodating space is formed among at least some of the support rod and frame units, the first lower bracket unit, and the second lower bracket unit;
- and
- a cover body, wherein a first connector is arranged at an upper end of each of the front bracket assembly and the rear bracket assembly;
- an upper end of the cover body is connected to the first connectors;
- and a lower end of the cover body is connected to a lower end of the front bracket assembly and a lower end of the rear bracket assembly or the lower bracket assembly;
- wherein a connecting strap is arranged at the upper end of the cover body;
- through holes are provided on the first connectors;
- and a free end of the connecting strap passes through the through holes and are connected to a surface of the cover body.
15 more elements
Dependencies are inferred from the claim text.